The symbol on your stock is found on many M48 Mauser sniper rifles. I saw a post a long time ago that had the same exact symbol. I might be mistaken but I think that symbol stands for a pro - Yugo paramilitary group. I know that the M48 Mausers with them represented that they were indeed sniper rifles for the Bosnians. As I said, I might be not 100% right on this. I personally wouldnt change the stock. It is part of that rifles history and it gives it a lot of character. If you were to change it to a wood stock, go on ebay.